Ember Days
Ember Days occur four times a year, about three months apart.
The remaining Ember Days for 2022 fall on:
December 14, 16, and 17.
Observing Ember Days is a requirement for all Catholics, unless otherwise dispensed due to age or some other reason. See this page on who is required to fast.
Note regarding the graphic: the quantity of the two meatless meals should not total in size the quantity of the main meal, but should be lesser than it.